expand "Dependencies" paragraph

docs/man/man7/cdist-manifest.text

@@ -110,24 +110,39 @@ setup the variable "require" to contain the requirements. Multiple
 requirements can be added white space separated.
 
 --------------------------------------------------------------------------------
-# No dependency
-__file /etc/cdist-configured
+ 1 # No dependency
+ 2 __file /etc/cdist-configured
+ 3 
+ 4 # Require above object
+ 5 require="__file/etc/cdist-configured" __link /tmp/cdist-testfile \
+ 6    --source /etc/cdist-configured  --type symbolic
+ 7 
+ 8 # Require two objects
+ 9 require="__file/etc/cdist-configured __link/tmp/cdist-testfile" \
+10    __file /tmp/cdist-another-testfile
 
-# Require above object
-require="__file/etc/cdist-configured" __link /tmp/cdist-testfile \
-   --source /etc/cdist-configured  --type symbolic
 
-# Require two objects
-require="__file/etc/cdist-configured __link/tmp/cdist-testfile" \
-   __file /tmp/cdist-another-testfile
+--------------------------------------------------------------------------------
 
+Above the "require" variable is only set for the command that is 
+immediately following it. Dependencies should allways be declared that way.
 
---------------------------------------------------------------------------------
+On line 4 you can see that the instantion of a type "__link" object needs
+the object "__file/etc/cdist-configured" to be present, before it can proceed.
+
+This also means that the "__link" command must make sure, that either
+"__file/etc/cdist-configured" allready is present, or, if it's not, it needs
+to be created. The task of cdist is to make sure, that the dependency will be
+resolved appropriately and thus "__file/etc/cdist-configured" be created
+if necessary before "__link" proceeds (or to abort execution with an error).
 
 All objects that are created in a type manifest are automatically required
 from the type that is calling them. This is called "autorequirement" in
 cdist jargon.
 
+You can find an more in depth description of the flow execution of manifests
+in cdist-stages(7) and of how types work in cdist-type(7).
+
 CREATE DEPENDENCIES FROM EXECUTION ORDER
 -----------------------------------------
 You can tell cdist to execute all types in the order in which they are created